The utility model relates to an underground multi-parameter monitoring device for an electric submersible pump. The measurement for multiple parameters, such as, underground inlet pressure, outlet pressure, inlet temperature, motor temperature, three axial vibrations and current leakage, can be supplied. A current carrier mode is adopted for signal transmission; the hardware circuit is simple; the power consumption is low; the communication is reliable; an original power cable of the electric pump is utilized and a star point communication signal transmission mode is adopted, so that no additional cable is required; the switching for the underground power supply polarity is controlled by an H-bridge circuit, so that the on-line monitoring for the current leakage can be realized; a temperature sensor for measuring the motor is directly mounted close to a motor winding, so that the motor temperature can be more timely and practically measured; three orthorhombic vibrating sensors are adopted, so that the underground vibrating information can be more comprehensively monitored; vibration-absorbing design is adopted for the underground structure, so that the underground multi-parameter monitoring device can adapt to the underground long-time high-temperature and strong-vibration working condition.